Halo: The Master Chief Collection / Achievements
01Citadel Skull
Halo 3: Find the hidden Skull on the Citadel multiplayer map.
- Unlocked by
- 1.3%
- Rarity
- Very rare
- Hidden achievement
- No
Data from Steam — Steam Web API Terms of Use. Last updated .
Halo: The Master Chief Collection / Achievements
Halo 3: Find the hidden Skull on the Citadel multiplayer map.
Data from Steam — Steam Web API Terms of Use. Last updated .